1. Department of Ophthalmology, Soonchunhyang Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea.
2. Department of Medicine, Yonsei University Graduate School of Medicine, Seoul, Korea.
3. Department of Ophthalmology, Konyang University College of Medicine, Daejeon, Korea.
4. Division of Endocrinology & Metabolism, Department of Internal Medicine, Soonchunhyang Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea.
5. Department of Ophthalmology, Severance Hospital, Institute of Vision Research, Yonsei University College of Medicine, Seoul, Korea.